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TPI vs. TBI, Why Did they Make TBI??

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Old 07-27-2001, 09:45 AM
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
TPI vs. TBI, Why Did they Make TBI??

Everyone says TPI is better. Then why did GM put TBI in their cars.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER, NO CAT
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter, 5" Autometer Tach w/shift lite
Soon to be installed
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Corvette Servo & .500 boost valve
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"There is nothing more addicting than speed"
Old 07-27-2001, 09:52 AM
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Car: 82 camaro SC
Engine: 350
Transmission: 700r4
cheap, simple, efficient. You can make some power out of the tbi if needed.


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350 with stealth intake, holley carb, 470 lift cam. 700r4 with .5 boost valve, vette servo, tci lock-up kit, B&M megashifter. Richmond 3.73 gears, powertrax locker, timkin bearings, synthetic lube. Custom 3 inch single into 2 2.5 pipes. 1 1/2 drop springs, 1 5/16 solid front sway bar, 1 inch rear bar, custom subframe connectors, custom LCA relocation brackets. Kobel ground FX, current red metallic paint. Lots of other stuff...
82camaro
Old 07-27-2001, 09:54 AM
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TBI was the economy option. They couldn't give the RS's TBI cause then nobody would order the more expensive Z28's.
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